Dallas’s goal of carbon neutrality by 2030 advances with second phase of green codes

Dallas stands out as one of the few large cities that is enforcing a green building code, with the city aiming to be carbon neutral by 2030. The city began implementing its Green Construction Ordinance in 2009, and entered its second and final phase October 1.

Over the past five years, the ordinance has been gradually extended to more building types and sizes. All residential and commercial projects must now meet minimum certification requirements.

There's flexibility in which certification system they shoot for, with Green Built Texas, LEED, or the International Green Construction Code (IgCC) all being acceptable.

(http://www.sustainablebusiness.com/index.cfm/go/news.display/id/25319)